A circular, single or multipiece item, metallic or nonmetallic in composition, designed to be fitted in a circumferential groove in a piston and to spring outward against the cylinder wall to function as a seal or wiper. It is supplied in various cross-sectional shapes and is cut through at one point to allow for installation in the piston ring groove. It may include an expander. Excludes packing, preformed; retainer, oil seal; retainer, packing; ring, retaining; ring wiper; and seal ring, metal.
Classification: Parts for steam turbines
NSN 6150-01-226-8096
NSN 5910-01-177-6210
NSN 5930-01-588-3252
NSN 5996-01-222-6378
NSN 5910-00-201-7551
NSN 6145-01-585-9624
NSN 6240-01-371-0978
NSN 6685-00-066-4101
NSN 5915-01-081-0406
NSN 5945-01-584-0059
NSN 5945-01-471-6623
NSN 6620-00-166-7345